Home / 1,672.29-2,307.62-926.24

Finding the Fourth Proportional to 1,672.29, 2,307.62 and 926.24

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Solution

The fourth proportional to 1,672.29, 2,307.62 and 926.24 is: 1,278.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.29 : 2,307.62 = 926.24 : x
  2. Step 2: Convert to fraction form
    1,672.29/2,307.62 = 926.24/x
  3. Step 3: Cross multiply
    1,672.29x = 2,307.62 × 926.24
  4. Step 4: Simplify right side
    1,672.29x = 2,137,400.73
  5. Step 5: Solve for x
    x = 2,137,400.73/1,672.29
  6. Step 6: Final answer
    x = 1,278.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.